Study for your exam in an environment that is similar to where the exam will take place. It is easier to recall something once you have learned it in an environment that resembles the environment in which it will be used.

Make sure to study for your exams throughout the entire semester. It is much better for the brain to gain knowledge gradually over a longer period of time.

Give presentations. When you have to explain your knowledge to others, it is easier to discover any gaps and/or uncertainties in your arguments and explanations.

Take a nap. A short 20-30 minute nap in the afternoon can help you obtain the learning you gained prior to the nap better.

Get a good night's sleep. Sleep is essential for your memory as the brain does memory consolidation when you are asleep. This allows the brain to remove unnecessary information and associate the new information with some existing knowledge.